• Pays
• Etats-Unis

• Fabricant / Marque
• Lafayette Radio & TV Corp; New York (NY)

• Année
• 1935/1936

• Catégorie
• Radio - ou tuner d'après la guerre 1939-45

• Radiomuseum.org ID
• 160266

• • alternative name: Wholesale Radio

Cliquez sur la vignette du schéma pour le demander en tant que document gratuit.

• No. de tubes
• 4

• Lampes / Tubes
• 1A6 34 34 33

• Principe général
• Super hétérodyne (en général); FI/IF 175 kHz

• Circuits accordés
• 5 Circuits MA (AM)

• Gammes d'ondes
• PO uniquement

• Tension / type courant
• Piles sèches / 45 & 45 & 4.5 & 2 Volt

• Haut-parleur
• HP dynamique à aimant permanent + bobine mobile

• Matière
• Boitier en bois

• De Radiomuseum.org
• Modèle: A-31 - Lafayette Radio & TV Corp; New

• Forme
• Modèle de table vertical décoré (pierre tombale)

• Remarques

• The Lafayette catalog shows how all batteries fit inside the mantel cabinet. There is a 3-gang tuning condenser, 5 tuned circuits, and an airplane-reduction dial. The wave band extends from 175 to 550 meters (police calls incl.).
  
  The model Lafayette A-31 is listed at $31.50 with tubes but the Lafayette price is $15.75. For addl. $4.65 Lafayette offers the complete set of batteries consisting of 2 Burgess 45 V. B's. 1-4.5 V.C. and 1 Burgess A pack. See details for the models of this catalog or summaries.

  The Lafayette Radio catalog model A-31 was in reality made by Wilcox-Gay as OEM and is labeled inside as Model 3J4.  The schematic matches the Wilcox-Gay 3J4.  In restoring the chassis, it became apparent that an error likely occurred in the schematic that was perpetuated in the actual radio.  The schematic as drawn pulls the C battery with a constant 1000 ohms load.  I will upload a copy of the schematic with the probable error circled.  In cutting what was believed to be that erroneous connection, the radio sensitivity was increased, distortion was reduced and the "B" current was reduced.  In testing, the C battery voltage that produced the best results with the least distortion and reduced B current was -9 volts, consistent with the tube manual recommendations for the type 33 audio tube with a plate voltage of 90.

• Prix de mise sur le marché
• 16.00 $

• Schémathèque (1)
• Lafayette Radio Catalog (Lafayette catalog no. 59 for 1936, page 32.)

• Schémathèque (2)
• The Spectum Monitor, June 2022

• Auteur
• Modèle crée par Ernst Erb. Voir les propositions de modification pour les contributeurs supplémentaires.

• D'autres Modèles

• Vous pourrez trouver sous ce lien 1369 modèles d'appareils, 1187 avec des images et 421 avec des schémas.
  Tous les appareils de Lafayette Radio & TV Corp; New York (NY)